Titre : | Bird Study 65(2) - June, 2018 |
Type de document : | Bulletin |
Paru le : | 01/06/2018 |
Dépouillements
Article
Sharon A. Poessel, Auteur ;
Evgeny A. Bragin, Auteur ;
Peter B. Sharpe, Auteur ;
David K. Garcelon, Auteur ;
Kordian Bartoszuk, Auteur ;
Todd E. Katzner, Auteur
Capsule: We describe ecological factors associated with movements of a globally declining raptor species, the Eastern Imperial Eagle Aquila heliaca.Aims: To describe the movements, habitat associations and resource selection of Eastern Imperial [...]
Article
Carlos Abrahams, Auteur ;
Matthew J. H. Denny, Auteur
Capsule: Automated acoustic recording can be used as a valuable survey technique for Capercaillie Tetrao urogallus leks, improving the quality and quantity of field data for this endangered bird species. However, more development work and testin[...]
Article
Jelena Kralj, Auteur ;
Luka Jurinovic, Auteur ;
Sanja Barisic, Auteur ;
Davor Cikovic, Auteur ;
Vesna Tutis, Auteur
Capsule: In Yellow-legged Gull Larus michahellis populations from the eastern Adriatic Sea, there are considerable differences in the ratio of migratory birds and apparent survival among the colonies. Survival was dependent on age, colony and ar[...]
Article
Simon R. Wotton, Auteur ;
Stephen Bladwell, Auteur ;
Wendy Mattingley, Auteur ;
Neil G. Morris, Auteur ;
David Raw, Auteur ;
Marc Ruddock, Auteur ;
Andrew Stevenson, Auteur ;
Mark A. Eaton, Auteur
Capsule: The fifth UK and the Isle of Man survey of Hen Harrier in 2016 showed varying trends by country and region.Aim: To estimate the size of the breeding Hen Harrier population (with associated 95% confidence intervals) in the UK and Isle of[...]
Article
Sigal Yaniv-Feller, Auteur ;
Yotam Orchan, Auteur ;
Ofer Bahat, Auteur ;
Uzi Motro, Auteur
Capsule: In Griffon Vultures Gyps fulvus both parents take part in all parenting tasks but males take a significantly larger part of the burden.
Article
Dan Liang, Auteur ;
Ge Gao, Auteur ;
Emilio Pagani-Nunez, Auteur ;
Hong Pang, Auteur ;
Yang Liu, Auteur ;
Xu Luo, Auteur ;
Scott K. Robinson, Auteur
Capsule: The incubation behaviour of the Fire-tailed Sunbird Aethopyga ignicauda was measured using data loggers in the Hengduan Mountains, China, to test predictions of parental trade-off theory. Overall, female sunbirds prioritized incubation [...]
Article
Nadja Weisshaupt, Auteur ;
Adriaan M. Dokter, Auteur ;
Juan Arizaga, Auteur ;
Mercedes Maruri, Auteur
Capsule: Nocturnal passerine migration patterns were studied by a network of weather radars within the East-Atlantic flyway providing large-scale information on the effect of a geographical barrier.Aims: The aim of this study was to obtain a lar[...]
Article
Philip Warren, Auteur ;
Tom Hornby, Auteur ;
David Baines, Auteur
Capsule: Call-playback in spring can be a practical method to survey Grey Partridges Perdix perdix in rough grasslands with abundant cover. However, further research is required to investigate movements and other responses to call-playback.Aims:[...]
Article
Piotr Piliczewski, Auteur ;
Łukasz Jankowiak, Auteur ;
Dariusz Wysocki, Auteur
Capsule: A 19-year study of European Blackbirds Turdus merula confirms that senescence is associated with a decrease in condition measured by wing length but bills become progressively longer with age.Aims: To explore the correlations between bi[...]
Article
Nicholas I. Wilkinson, Auteur ;
Mark A. Eaton, Auteur ;
Kendrew Colhoun, Auteur ;
Allan L. Drewitt, Auteur
Capsule: The second national survey of Twite Linaria flavirostris estimated a UK breeding population of 7831 pairs (95% confidence limits: 5829–10 137) in 2013.Aims: To estimate the breeding population size of Twite in the UK and constituent cou[...]
Article
Judith Zellweger-Fischer, Auteur ;
Jael Hoffmann, Auteur ;
Pius Korner-Nievergelt, Auteur ;
Lukas Pfiffner, Auteur ;
Sibylle Stoeckli, Auteur ;
Simon Birrer, Auteur
Capsule: Farmers can influence species richness and abundance of typical farmland birds positively, even on rather small farms (20–50 ha) within intensively farmed areas.Aims: To assess the impact of farm settings, farm characteristics and heter[...]
Article
Böðvar Þórisson, Auteur ;
Verónica Méndez, Auteur ;
José A. Alves, Auteur ;
Jennifer A. Gill, Auteur ;
Kristinn H. Skarphéðinsson, Auteur ;
Svenja N. V. Auhage, Auteur ;
Sölvi R. Vignisson, Auteur ;
Guðmundur Ö Benediktsson, Auteur ;
Brynjúlfur Brynjólfsson, Auteur ;
Cristian Gallo, Auteur ;
Hafdís Sturlaugsdóttir, Auteur ;
Páll Leifsson, Auteur ;
Tómas Grétar Gunnarsson, Auteur
Capsule: The first ever survey of Oystercatchers wintering in Iceland found around 11 000 individuals. This is an estimated 30% of the Icelandic population, including juveniles, suggesting that approximately 26 000 Icelandic Oystercatchers migra[...]
Article
Alexander V. Sharikov, Auteur ;
Ekaterina M. Shishkina, Auteur ;
Tatyana S. Kovinka, Auteur
Capsule: Analysis of regurgitated pellets showed that fish were a very rare prey in the diet of the Long-eared Owl Asio otus. Remains of 38 individual fish were found at 8 of 121 nests and only in 2 out of 11 years. Occurrence tended to be more [...]
Article
Adam Flis, Auteur ;
Robert Gwiazda, Auteur
Capsule: The diet and feeding of nestling Little Bitterns Ixobrychus minutus was studied using trail cameras. Little Bitterns nestlings were mostly provisioned with amphibians and small fish. They were fed in the morning and evening, but not dur[...]
Article
Roman Lyach, Auteur ;
Petr Blabolil, Auteur ;
Martin Čech, Auteur
Capsule: Great Cormorants Phalacrocorax carbo prey on larger fish in late winter compared to early winter.Aims: This study aimed to describe Cormorant diet and to discover whether prey size changed during winter.Methods: The diet of Cormorants w[...]
Article
Dmitry Shitikov, Auteur ;
Irina Knyazeva, Auteur ;
Alexander Grabovsky, Auteur
Capsule: Sympatric Marsh Warblers Acrocephalus palustris and Blyth’s Reed Warblers Acrocephalus dumetorum differ significantly in their life history traits.Aims: To provide a direct comparison of demographic parameters among two sympatric popula[...]